PUBLICATIONS

289. K. C. Das, Nordhaus-Gaddum-type result on the second largest signless Laplacian eigenvalue of a graph, Linear Multilinear Algebra 69 (6) (2021) 1035–1044.

288. K. C. Das, Y. Shang, Some extremal graphs with respect to Sombor index, Mathematics 9 (2021) 1202.

287. K. Xu, K. C. Das, I. Gutman, M. Wang, Comparison between Merrifield-Simmons index and Wiener index of graphs, Acta Math. Sinica, English Series, in press.

286. M. Liu, G. Zhang, K. C. Das, The maximum number of spanning trees of a graph with given matching number, Bulletin of the Malaysian Mathematical Sciences Society, in press.

285. S. Sun, K. C. Das, Corrigendum to “Proof of a conjecture on distance energy change of complete multipartite graph due to edge deletion” [Linear Algebra Appl. 611 (2021) 253–259], Linear Algebra Appl. 618 (2021) 203–204.

284. S. Sun, K. C. Das, Y. Shang, On maximal distance energy, Mathematics 9 (2021) 360.

283. M. R. Alfuraidan, K. C. Das, T. Vetr´ık, S. Balachandran, General sum-connectivity index of unicyclic graphs with given order and diameter, Discrete Appl. Math. 295 (2021) 39–46.

282. S. Akbari1, K. C. Das, S. K. Ghezelahmad, F. K.-Moftakhar, Hypoenergetic and nonhy-poenergetic digraphs, Linear Algebra Appl. 618 (2021) 129–143.

281. S. Sun, K. C. Das, Proof and disproof of conjectures on spectral radii of coclique extension of cycles and paths, Linear Algebra Appl. 618 (2021) 1–11.

280. K. C. Das, A. S. Cevik, I. N. Cangul, Y. Shang, On Sombor index, Symmetry 13 (2021) 140.

279. A. Ali, K. C. Das, D. Dimitrov, B. Furtula, Atom-bond connectivity index of graphs: a review over extremal results and bounds, Discrete Math. Lett., in press.

278. K. C. Das, J. M. Rodr´ıguez, J. M. Sigarreta, On the generalized ABC index of graphs, MATCH Commun. Math. Comput. Chem. 87 (1) (2022) 000–000.

277. S. Bera, K. C. Das, On Lanzhou index of graphs, Ars Combinatorica, in press.

276. A. Ali, K. C. Das, S. Akhter, On the extremal graphs for second Zagreb index with fixed number of vertices and cyclomatic number, Miskolc Mathematical Notes, in press.

275. K. C. Das, S. Bakaein, M. Tavakoli, F. Rahbarnia, A. Ashrafi, List coloring under some graph operations, Kragujevac Journal of Mathematics 46 (3) (2022) 417–431.

274. K. C. Das, S. Elumalai, S. Balachandran, Open problems on the exponential vertex-degree-based topological indices of graphs, Discrete Appl. Math. 293 (2021) 38–49.

273. S. Akbari, J. Askari, K. C. Das, Some properties of eigenvalues of the Seidel matrix, Linear and Multilinear Algebra, in press.

272. K. C. Das, On the Balaban index of chain graphs, Bulletin of the Malaysian Mathematical Sciences Society, in press.

271. K. C. Das, I. Gutman, Upper bounds on distance energy, MATCH Commun. Math. Comput. Chem. 86 (3) (2021) 611–620.

270. Rakshith B. R., K. C. Das, M. A. Sriraj, On (distance) signless Laplacian spectra of graphs, Journal of Applied Math. Comput., in press.

269. S. Sun, K. C. Das, Proof of a conjecture on distance energy change of complete multipartite graph due to edge deletion, Linear Algebra Appl. 611 (2021) 253–259.

268. B. Horoldagva, K. C. Das, On Zagreb Indices of Graphs, MATCH Commun. Math. Comput. Chem. 85 (2) (2021) 295–301.

267. S. Sun, K. C. Das, On the normalized Laplacian spectral radii of a graph and its line graph, Computational and Applied Mathematics 39 (4) (2020) 283.

266. S. Sun, K. C. Das, On the multiplicities of normalized Laplacian eigenvalues of graphs, Linear Algebra Appl. 609 (2021) 365–385.

265. S. Akbari, K. C. Das, M. Ghahremani, F. Koorepazan-Moftakhar, E. Raoufi, Energy of graphs containing disjoint cycles, MATCH Commun. Math. Comput. Chem. 86 (3) (2021) 543–547.

264. K. C. Das, S. Elumalai, A. Ghosh, T. Mansour, On conjecture of Merrifield-Simmons index, Discrete Appl. Math. 288 (2021) 211–217.

263. Z. Du, K. C. Das, The conjecture about the comparison for resolvent energies of cycles and stars, MATCH Commun. Math. Comput. Chem. 86 (3) (2021) 635–641.

262. H. Darabi, Y. Alizadeh, S. Klavˇ zar, K. C. Das, On the relation between Wiener index and eccentricity of a graph, Journal of Combinatorial Optimization, in press.

261. K. C. Das, Y. Mao, I. Gutman, On Distance-based graph invariants, MATCH Commun. Math. Comput. Chem. 86 (2) (2021) 375–393.

260. K. C. Das, Proof of a conjecture on the complete split-like graphs, Utilitas Math. 117 (2020) 45–52.

259. Z. Wang, Y. Mao, K. C. Das, Y. Shang, Nordhaus-Guddum type results for the Steiner Gutman index of graphs, Symmetry 12 (2020) 1711.

258. K. C. Das, J. M. Rodr´ıguez, J. M. Sigarreta, On the maximal general ABC index of graphs with given maximum degree, Applied Math. Comput. 386 (2020) 125531.

257. H. Hua, K. C. Das, Comparative results and bounds for the eccentric-adjacency index, Discrete Appl. Math. 285 (2020) 188–196.

256. B. Deng, C. Chang, H. Zhao, K. C. Das, Construction for the sequences of Q-Borderenergetic Graphs, Mathematical Problems in Engineering 2020 6176849.

255. C. Adiga, K. C. Das, B. R. Rakshith, Some graphs determined by their signless Laplacian spectra and distance spectra, Electronic Journal of Linear Algebra 36 (2020) 461–472.

254. M. M. Liu, K. C. Das, On the Steiner (Revised) Szeged Index, MATCH Commun. Math. Comput. Chem. 84 (3) (2020) 579–594.

253. K. C. Das, A. Alazemi, M. Andelic, On energy and Laplacian energy of chain graphs, Discrete Appl. Math. 284 (2020) 391–400.

252. S. Liu, K. C. Das, J. L. Shu, On the eigenvalues of A α -matrix of graphs, Discrete Math. 343 (8) (2020) 111917.

251. S. Sun, K. C. Das, Normalized Laplacian spectrum of complete multipartite graphs, Discrete Appl. Math. 284 (2020) 234–245.

250. A. Alhevaz, M. Baghipur, K. C. Das, Yilun Shang, Sharp bounds on (generalized) distance energy of graphs, Mathematics 8 (3) (2020) 426.

249. T. Wu, K. C. Das, On the permanental sum of bicyclic graphs, Computational and Applied Mathematics 39 (2020) 72.

248. L. Saha, S. Das, K. C. Das, K. Tiwary, Radio k-labeling of Paths, Hacettepe Jour. Math. & Stat. 49 (6) (2020) 1926–1943.

247. K. Xu, K. C. Das, S. Klavˇ zar, H. Li, Comparison of Wiener Index and Zagreb Eccentricity Indices, MATCH Commun. Math. Comput. Chem. 84 (3) (2020) 595–610.

246. M. Liu, G. Zhang, K. C. Das, Some properties of algebraic connectivity, National Academy Science Letters 43 (6) (2020) 537–542.

245. L. Buyantogtokh, B. Horoldagva, K. C. Das, On reduced second Zagreb index, Journal of Combinatorial Optimization 39 (2020) 776–791.

244. S. Sun, K. C. Das, A conjecture on the spectral radius of graphs, Linear Algebra Appl. 588 (2020) 74–80.

243. S. Liu, K. C. Das, S. Sun, J. Shu, On the least eigenvalue of A−α-matrix of graphs, Linear Algebra Appl. 586 (2020) 347–376.

242. S. Sun, K. C. Das, Normalized Laplacian eigenvalues with chromatic number and independence number of graphs, Linear and Multilinear Algebra 68 (1) (2020) 63–80.

241. K. C. Das, M. Tavakoli, Bounds for metric dimension and defensive k-alliance of graphs under deleted lexicographic product, Transactions on Combinatorics 9 (1) (2020) 31–39.

240. M. Liu, Y. Yuan, K. C. Das, Extremal results for cacti, Bulletin of the Malaysian Mathematical Sciences Society 43 (2020) 2783–2798.

239. M. Liu, Y. Yuan, K. C. Das, The fan graph is determined by its signless Laplacian spectrum, Czechoslovak Math. J. 70 (2020) 21–31.

238. K. Xu, K. C. Das, X. Gu, Comparison and extremal results on three eccentricity-based invariants of graphs, Acta Math. Sinica, English Series 36 (2020) 40–54.

237. M. A. Rajan, K. C. Das, V. Lokesha, I. N. Cangul, On some properties of coprime labelled graphs, Turkish Journal of Analysis and Number Theory 7 (3) (2019) 77–84.

236. K. C. Das, H. Lin, J.-M. Guo, On the distance signless Laplacian eigenvalues of graphs, Front. Math. China 14 (4) (2019) 693–713.

235. H. Hua, K. C. Das, H. Wang, On atom-bond connectivity index of graphs, J. Math. Anal. Appl. 479 (2019) 1099–1114.

234. K. C. Das, A. Ali, On a Conjecture about the Second Zagreb Index, Discrete Mathematics Letters 2 (2019) 38–43.

233. K. C. Das, S. A. Mojallal, Open problem on σ-invariant, Taiwanese Journal of Mathematics 23 (5) (2019) 1041–1059.

232. K. Xu, F. Gao, K. C. Das, N. Trinajsti´ c, A formula with its applications on the difference of Zagreb indices of graphs, J. Math. Chem. 57 (2019) 1618–1626.

231. S. Sun, K. C. Das, Comparison of resolvent energies of Laplacian matrices, MATCH Commun. Math. Comput. Chem. 82 (2) (2019) 491–514.

230. K. C. Das, A. R. Ashrafi, A. Ghalavand, Comparison between Szeged indices of graphs, Quaestiones Mathematicae (2019) 1–16.

229. M. Liu, H.-J. Lai, K. C. Das, Spectral results on Hamiltonian problem, Discrete Math. 342 (2019) 1718–1730.

228. K. C. Das, On the Zagreb energy and Zagreb Estrada index of graphs, MATCH Commun. Math. Comput. Chem. 82 (2) (2019) 529–542.

227. M. An, Y. Zhang, K. C. Das, L. Xiong, Reciprocal degree distance and graph properties, Discrete Appl. Math. 258 (2019) 1–7.

226. J. Ye, M. Liu, Y. Yao, K. C. Das, Extremal polygonal cactus for bond incident degree indices, Discrete Appl. Math. 257 (2019) 289–298.

225. K. C. Das, M. Aouchiche, P. Hansen, On distance Laplacian and distance signless Laplacian eigenvalues of graphs, Linear and Multilinear Algebra 67 (11) (2019) 2307–2324.

224. K. C. Das, M. Mateji´ c, E. Milovanovi´ c, I. Milovanovi´ c, Bounds for symmetric division deg index of graphs, Filomat, 33 (3) (2019) 683–698.

223. T. Wu, S. Ren, K. C. Das, Some extremal graphs with respect to permanental sum, Bulletin of the Malaysian Mathematical Sciences Society 42 (2019) 2947–2961.

222. Y. Mao, Z. Wang, K. C. Das, Steiner Degree Distance of Two Graph Products, Analele Stiintifice ale Universitatii Ovidius Constanta 27 (2) (2019) 83–99.

221. B. Horoldagva, L. Buyantogtokh, K. C. Das, S.-G. Lee, On general reduced second Zagreb index of graphs, Hacettepe Journal of Mathematics and Statistics 48 (4) (2019) 1–11.

220. B. Horoldagva, K. C. Das, T.-A. Selenge, On ve-degree and ev-degree of graphs, Discrete Optimization 31 (2019) 1–7.

219. K. C. Das, I. Gutman, Comparing Laplacian energy and Kirchhoff index, MATCH Commun. Math. Comput. Chem. 81 (2) (2019) 419–424.

218. K. C. Das, M. A. Hosseinzadeh, S. Hossein-Zadeh, A. Iranmanesh, Some bounds for total communicability of graphs, Linear Algebra Appl. 569 (2019) 266–284.

217. K. C. Das, Conjectures on Resolvent Energy of Graphs, MATCH Commun. Math. Comput. Chem. 81 (2) (2019) 453–464.

216. K. C. Das, S. A. Mojallal, S. Sun, On the sum of the k largest eigenvalues of graphs and maximal energy of bipartite graphs, Linear Algebra Appl. 569 (2019) 175–194.

215. S. Sun, K. C. Das, On the second largest normalized Laplacian eigenvalue of graphs, Applied Mathematics Computation 348 (2019) 531–541.

214. Y. Yao, M. Liu, K. C. Das, Y. Ye, Some extremal results for vertex-degree-based invariants, MATCH Commun. Math. Comput. Chem. 81 (2) (2019) 325–344.

213. H. Hua, I. Gutman, H. Wang, K. C. Das, Relationships between some distance-based topological indices, Filomat 32 (17) (2018) 5809–5815.

212. K. C. Das, I. Gutman, On Laplacian energy, Laplacian-energy-like invariant and Kirchhoff index of graphs, Linear Algebra Appl. 554 (2018) 170–184.

211. K. C. Das, I. Gutman, I. Milovanovi´ c, E. Milovanovi´ c, B. Furtula, Degree-based energies of graphs, Linear Algebra Appl. 554 (2018) 185–204.

210. X. Chen, K. C. Das, Solution to a conjecture on the maximum ABC index of graphs with given chromatic number, Discrete Appl. Math. 251 (2018) 126–134. .

209. K. Xu, H. Liu, K. C. Das, S. Klavzar, Embeddings into almost self-centered graphs of given radius, Journal of Combinatorial Optimization 36 (2018) 1388–1410.

208. B. Furtula, K. C. Das, I. Gutman, Comparative analysis of symmetric division deg index as potentially useful molecular descriptor, International Journal of Quantum Chemistry 118 (17) (2018) e25659 (1–14).

207. K. C. Das, Proof of conjecture involving algebraic connectivity and average degree of graphs, Linear Algebra Appl. 548 (2018) 172–188.

206. K. C. Das, K. Xu, X. Li, H. Liu, On the average of the eccentricities of a graph, Filomat, bf 32 (4) (2018) 1395–1401.

205. Y. Mao, K. C. Das, Steiner Gutman index, MATCH Commun. Math. Comput. Chem., 79 (3) (2018) 779–794.

204. K. C. Das, M. Liu, On two conjectures of spectral graph theory, Bulletin of the Iranian Mathematical Society 44 (2018) 43–51.

203. K. C. Das, M. Aouchiche, P. Hansen, On (distance) Laplacian energy and (distance) signless Laplacian energy of graphs, Discrete Appl. Math. 243 (2018) 172–185.

202. M. An, K. C. Das, First Zagreb index, k-connectivity, beta-deficiency and k-hamiltonicity of graphs, MATCH Commun. Math. Comput. Chem., 80 (1) (2018) 141–151.

201. M. Liu, Y. Zhu, H. Shan, K. C. Das, Erratum to “The spectral characterization of butterfly-like graphs” [Linear Algebra Appl. 513 (2017) 55–68], 539 (2018) 274–276.

200. M. Liu, K. C. Das, On the ordering of distance-based invariants of graphs, Applied Mathematics Computation 324 (2018) 191–201.

199. K. C. Das, Y. Yang, Eigenvalues of the resistance-distance matrix of complete multipartite graphs, Journal of inequalities and appl. (2017) 2017:296.

198. K. C. Das, S. Balachandran, I. Gutman, Inverse degree, Randi´ c index and Harmonic index of graphs, Applicable Analysis and Discrete Mathematics 11 (2017) 304–313.

197. K. Xu, Y. Alizadeh, K. C. Das, On two eccentricity-based topological indices of graphs, Discrete Appl. Math. 233 (2017) 240–251.

196. K. C. Das, S. Sun, I. Gutman, Normalized Laplacian eigenvalues and Randi´ c energy of graphs, MATCH Commun. Math. Comput. Chem. 77 (1) ( 2017) 45–59.

195. K. C. Das, M. Liu, Minimal extremal graphs for addition of algebraic connectivity and independence number of connected graphs, Filomat 31 (18) (2017) 5545–5551.

194. K. C. Das, S. Shaowei, Distance between the normalized Laplacian spectra of two graphs, Linear Algebra Appl. 530 (2017) 305–321.

193. I. Gutman, K. C. Das, B. Furtula, E. Milovanovi´ c, I. E. Milovanovi´ c, Generalizations of Szókefalvi Nagy and Chebyshev Inequalities with Applications in Spectral Graph Theory, Applied Mathematics Computation 313 (2017) 235–244.

192. K. C. Das, C. Fonseca, Some spectral bounds for the harmonic index, Analele Stiintificeale Universitatii Ovidius Constanta 25 (3) (2017) 73–81.

191. K. C. Das, Y. Shi, Some properties on entropies of graphs, MATCH Commun. Math. Comput. Chem. 78 (2) (2017) 259–272.

190. K. C. Das, On energy, Laplacian energy and signless Laplacian energy of graphs, 20. Bounds in Chemical Graph Theory - Mainstreams, Kragujevac, 2017, 3–21. (Book Chapter)

189. K. C. Das, S. A. Mojallal, I. Gutman, Relations between degrees, conjugate degrees and graph energies, Linear Algebra Appl. 515 (2017) 24–37.

188. K. C. Das, S. Elumalai, I. Gutman, On ABC-index of graphs, MATCH Commun. Math. Comput. Chem. 78 (2) (2017) 459–468.

187. B. Borovicanin, K. C. Das, B. Furtula, I. Gutman, Zagreb Indices: Bounds and Extremal Graphs, 19. Bounds in Chemical Graph Theory Basics, Kragujevac, 2017, 67–153. (Book Chapter)

186. K. C. Das, A. D. Maden, I. N. Cangül, A. S. Cevik, On average eccentricity of graphs, Proceedings of the National Academy of Sciences, Physical Sciences (NASA) 87 (1) (2017) 23–30.

185. H. Lin , D. Li, K. C. Das, Distance between distance spectra of graphs, Linear and Multilinear Algebra 65 (12) (2017) 2538–2550.

184. K. C. Das, M. J. Nadjafi-Arani, On maximum Wiener index of trees and graphs with given radius, Journal of Combinatorial Optimization 34 (2) (2017) 574–587.

183. K. C. Das, M. Liu, Kite graphs determined by their spectra, Applied Mathematics Computation 297 (2017) 74–78.

182. K. C. Das, S. Elumalai, On energy of graphs, MATCH Commun. Math. Comput. Chem. 77 (1) (2017) 3–8.

181. K. C. Das, I. Gutman, B. Furtula, On spectral radius and energy of extended adjacency matrix of graphs, Applied Mathematics Computation 296 (2017) 116–123.

180. K. C. Das, E. Fritscher, L. K. Pinheiro, V. Trevisan, Maximum Laplacian energy of unicyclic graphs, Discrete Appl. Math. 218 (2017) 71–81.

179. B. Borovi´ canin, K. C. Das, B. Furtula, I. Gutman, Zagreb indices: Bounds and extremal graphs, MATCH Commun. Math. Comput. Chem. 78 (1) (2017) 17–100.

178. M. Liu, Y. Zhu, H. Shan, K. C. Das, The spectral characterization of butterfly-like graphs, Linear Algebra Appl. 513 (2017) 55–68.

177. T.-A. Selenge, B. Horoldagva, K. C. Das, Direct comparison of the variable Zagreb indices of cyclic Graphs, MATCH Commun. Math. Comput. Chem. 78 (2) (2017) 351–360.

176. K. C. Das, S. Sun, Extremal Graphs for Randi´ c Energy, MATCH Commun. Math. Comput. Chem. 77 (1) (2017) 77–84.

175. M. Liu, K. C. Das, H. Lai, The (signless) spectral radii of c-cyclic graphs with n vertices, girth g and k pendant vertices, Linear and Multilinear Algebra 65 (5) (2017) 869–881.

174. I. Gutman, B. Furtula, K. C. Das, Extended energy and its dependence on molecular structure, Canadian J. Chem. 95 (2017) 526–529.

173. K. C. Das, Comparison between Zagreb eccentricity indices and the eccentric connectivity index, the second geometric-arithmetic index and the Graovac-Ghorbani index, Croat Chem. Acta. 89 (4) (2016) 505–510.

172. N. Mahajan, H. Jangra, K. C. Das, S. S. Sambi, P. V. Bharatam, A. K. Madan, Path Eccentric Connectivity Indices: Novel Highly Discriminating Topological Descriptors for QSAR/QSPR. Part 1. Development and Evaluation, Internet Electronic Journal of Molecular Design 15 (1) (2016) 1–23.

171. K. C. Das, S. Sun, Extremal graphs for normalized Laplacian spectral radius and energy, Electronic Journal of Linear Algebra 31 (2016) 237–254.

170. K. Xu, H. Liu, Y. Yang, K. C. Das, The minimal Kirchhoff index of graphs with a given number of cut vertices, Filomat 30 (13) (2016) 3451–3463.

169. K. C. Das, S. A. Mojallal, Relation between signless Laplacian energy, energy of graph and its line graph, Linear Algebra Appl. 493 (2016) 91–107.

168. K. C. Das, S. A. Mojallal, V. Trevisan, Distribution of Laplacian eigenvalues of graphs, Linear Algebra Appl. 508 (2016) 48–61.

167. H. Lin, K. C. Das, Characterization of extremal graphs from distance signless Laplacian eigenvalues, Linear Algebra Appl. 500 (2016) 77–87.

166. K. C. Das, S. A. Mojallal, I. Gutman, On energy of line graphs, Linear Algebra Appl. 499 (2016) 79–89.

165. X. Chen, K. C. Das, Some results on the Laplacian spread of a graph, Linear Algebra Appl. 505 (2016) 245–260.

164. K. C. Das, K. Xu, J. Wang, On Inverse degree and topological indices of graphs, Filomat 30 (8) (2016) 2111–2120.

163. K. C. Das, S. A. Mojallal, On energy and Laplacian energy of graphs, Electronic Journal of Linear Algebra 31 (2016) 167–186.

162. K. Xu, K. C. Das, H. Liu, Some extremal results on the connective eccentricity index of graphs, Journal of Mathematical Analysis and Applications 433 (2016) 803–817.

161. K. C. Das, M. Liu, Complete split graph determined by its (signless) Laplace spectrum, Discrete Appl. Math. 205 (2016) 45–51.

160. K. C. Das, I. Gutman, On Wiener and multiplicative Wiener indices of graphs, Discrete Appl. Math. 206 (2016) 9–14.

159. H. Lin, K. C. Das, B. Wu, Remoteness and distance eigenvalues of a graph, Discrete Appl. Math. 215 (2016) 218–224.

158. K. Xu, K. C. Das, Some extremal graphs with respect to inverse degree, Discrete Appl. Math. 203 (2016) 171–183.

157. B. Horoldagva, K. C. Das, T.-A. Selenge, Complete characterization of graphs for direct comparing Zagreb indices, Discrete Appl. Math. 215 (2016) 146–154.

156. K. C. Das, M. Dehmer, On a Conjecture on the Extremal Values of Graph Entropy based on Degree Powers, Entropy 18 (2016) 183.

155. K. C. Das, S. Sun, Normalized Laplacian Eigenvalues and Energy of Trees, Taiwanese Journal of Mathematics 20 (3) (2016) 491–507.

154. K. C. Das, M. Liu, Quotient of spectral radius, (signless) Laplacian spectral radius and clique number of graphs, Czechoslovak Math. Journal 66 (3) (2016) 1039–1048.

153. I. Gutman, B. Furtula, K. C. Das, On some degree-and-distance-based graph invariants of trees, Applied Mathematics Computation 289 (2016) 1–6.

152. H. Hua, K. C. Das, On the Wiener polarity index of graphs, Applied Mathematics Computation 280 (2016) 162–167.

151. K. C. Das, S. A. Mojallal, Extremal Laplacian energy of threshold graphs, Applied Mathematics Computation 273 (2016) 267–280.

150. K. C. Das, M. Dehmer, Comparison between the zeroth-order Randi´ c index and the sum-connectivity index, Applied Mathematics Computation 274 (2016) 585–589.

149. K. C. Das, On the Graovac-Ghorbani index of graphs, Applied Mathematics Computation 275 (2016) 353–360.

148. K. C. Das, S. A. Mojallal, I. Gutman, On energy and Laplacian energy of bipartite graphs, Applied Mathematics Computation, 273 (2016) 759–766.

147. K. Xu, K. C. Das, X.-D. Zhang, Ordering connected graphs by their Kirchhoff indices, International Journal of Computer Math. 93 (10) (2016) 1741–1755.

146. L. Feng, K. Xu, K. C. Das, A. Ili´ c, G. Yu, The number of spanning trees of a graph with given matching number, International Journal of Computer Math. 93 (6) (2016) 837–843.

145. J. A. Farsangi, A. Iranmanesh, K. C. Das, Seidel Estrada Index, Journal of Inequalities and Application, (2016) 2016: 120.

144. K. Xu, K. C. Das, A. D. Maden, On a novel eccentricity-based invariant of a graph, Acta Mathematica Sinica, English Series 32 (12) (2016) 1477–1493.

143. K. C. Das, S. Das, B. Zhou, On the sum-connectivity index of a graph, Frontiers of Mathematics in China 11 (1) (2016) 47–54.

142. K. C. Das, N. Akgünes, M. Togan, A. Yurttas, I. N. Cangül, A. S. Cevik, On the first Zagreb index and multiplicative Zagreb coindices of graphs, Analele Stiintifice ale Universitatii Ovidius Constanta 24 (1) (2016) 153–176.

141. K. C. Das, M. A. Mohammed, I. Gutman, K. A. Atan, Comparison between Atom-Bond Connectivity Indices of Graphs, MATCH Commun. Math. Comput. Chem. 76 (1) (2016) 159–170.

140. K. C. Das, G. Su, L. Xiong, Relation between Degree Distance and Gutman Index of Graphs, MATCH Commun. Math. Comput. Chem. 76 (1) (2016) 221–232.

139. K. C. Das, I. Gutman, Bounds for the Energy of Graphs, Hacettepe Journal of Mathematics and Statistics 45 (3) (2016) 1–9.

138. B. Furtula, I. Gutman, K. C. Das, On atom-bond connectivity molecule structure descriptors, Journal Serbian Chem. Soc. 81 (3) (2016) 271–276.

137. K. C. Das, Y. Yang, K. Xu, Nordhaus-Gaddum-type results for resistance distance-based molecular structure descriptors, Discussiones Mathematicae Graph Theory 36 (2016) 695–707.

136. K. C. Das, K. Xu, On relation between Kirchhoff index, Laplacian-energy-like invariant and Laplacian energy of graphs, Bulletin of the Malaysian Mathematical Sciences Society 39 (2016) S59–S75.

135. K. C. Das, J.-M. Guo, Eigenvalues of the k-th power of a graph, Mathematische Nachrichten 289 (13) (2016) 1585–1593.

134. G. Su, J. Tu, K. C. Das, Graphs with fixed number of pendent vertices and minimal Zeroth-order general Randi´ c index, Applied Mathematics Computation 270 (2015) 705–710.

133. K. C. Das, I. Gutman, M. J. Nadjafi-Arani, Relations between distance-based and degree based topological indices, Applied Mathematics Computation 270 (2015) 142–147.

132. K. C. Das, S. A. Mojallal, I. Gutman, On Laplacian energy in terms of graph invariants, Applied Mathematics Computation 268 (2015) 83–95.

131. K. C. Das, C. M. d. S. Junior, M. A. A. d. Freitas, R. R. Del-Vecchio, Bounds on the entries of the principal eigenvector of the distance signless Laplacian matrix, Linear Algebra Appl. 483 (2015) 200–220.

130. K. C. Das, S. Sorgun, K. Xu, On Randi´ c energy of graphs, Energy of graphs, Book Chapter (Energies of Graphs: Theory and Applications), 2016.

129. M. Liu, B. Liu, K. C. Das, Recent results on the majorization theory of graph spectrum and topological index theory-A survey, Electronic Journal of Linear Algebra 30 (2015) 402–421.

128. K. C. Das, A conjecture on algebraic connectivity of graphs, Taiwanese Journal of Mathematics 19 (2015) 1317–1323.

127. K. C. Das, S. A. Mojallal, Relation between energy and (signless) Laplacian energy of graphs, MATCH Commun. Math. Comput. Chem. 74 (2) (2015) 359–366.

126. K. C. Das, M. J. Nadjafi-Arani, Comparison between the Szeged index and the eccentric connectivity index, Discrete Appl. Math. 186 (2015) 74–86.

125. X. Chen, K. C. Das, Characterization of extremal graphs from Laplacian eigenvalues and the sum of powers of the Laplacian eigenvalues of graphs, Discrete Math. 338 (2015) 1252–1263.

124. K. Xu , H. Liu, K. C. Das, The Kirchhoff Index of Quasi-Tree Graphs, Z. Naturforsch 70 (3)a (2015) 135–139.

123. H. Hua, Y. Chen, K. C. Das, The Difference between Remoteness and Radius of a graph, Discrete Appl. Math. 187 (2015) 103–110.

122. K. Xu, J. Wang, K. C. Das, S. Klavˇ zar, Weighted Harary indices of apex trees and k-apex trees, Discrete Appl. Math. 189 (2015) 30–40.

121. K. Xu, Z. Zheng, K. C. Das, Extremal t-apex trees with respect to matching energy, Complexity 21 (5) (2015) 238–247.

120. K. C. Das, Proof of conjectures on the distance signless Laplacian eigenvalues of graphs, Linear Algebra Appl. 467 (2015) 100–115.

119. K. C. Das, S. Sorgun, I. Gutman, On Randi´ c energy, MATCH Commun. Math. Comput. Chem. 73 (1) (2015) 81–92.

118. K. Xu, K. C. Das, Z. Zheng, The Minimal Matching Energy of (n, m)-Graphs with a Given Matching Number, MATCH Commun. Math. Comput. Chem. 73 (1) (2015) 93–104.

117. B. Horoldagva, K. C. Das, Sharp lower bounds on the Zagreb indices of Unicyclic graphs, Turkish Journal of Mathematics 39 (2015) 595–603.

116. K. C. Das, A. Dilek Güngör and S ¸. Burcu Bozkurt, On the normalized Laplacian eigenvalues of graphs, Ars Comb. 118 (2015) 143–154.

115. K. C. Das, K. Xu, J. Nam, On Zagreb indices of graphs, Frontiers of Mathematics in China 10 (3) (2015) 567–582.

114. A. Sinan Cevik, K. C. Das, I. Naci Cangul, A. Dilek Maden, Minimality over free monoid presentations, Hacettepe Journal of Mathematics and Statistics 43 (6) (2014) 899–013.

113. K. C. Das, M. Liu, H. Shan, Upper bounds on the (signless) Laplacian eigenvalues of graphs, Linear Algebra Appl. 459 (2014) 334–341.

112. K. C. Das, S. A. Mojallal, On Laplacian energy of graphs, Discrete Math. 325 (2014) 52–64.

111. H. Hua, K. C. Das, Proof of conjectures on remoteness and proximity in graphs, Discrete Appl. Math. 171 (2014) 72–80.

110. M. Liu, H. Shan, K. C. Das, Some graphs determined by their (signless) Laplacian spectra, Linear Algebra Appl. 449 (2014) 154–165.

109. K. C. Das, I. Gutman, On incidence energy of graphs, Linear Algebra Appl. 446 (2014) 329–344.

108. K. C. Das, I. Gutman, A. Sinan C¸evik, On the Laplacian-energy-like Invariant, Linear Algebra Appl. 442 (2014) 58–68.

107. K. Xu, S. Klavˇ zar, K. C. Das, J. Wang, Extremal (n, m)-graphs with respect to distance-degree-based topological indices, MATCH Commun. Math. Comput. Chem. 72 (3) (2014) 865–880.

106. R. K. Marwaha, H. Jangra, K. C. Das, P. V. Bharatam, A. K. Madan, Path eccentric-ity based highly discriminating topological descriptors for QSAR/QSPR Part-1: development and evaluation, International Journal of Chemical Modeling, Vol VI (4) (2014) 531–556.

105. K. C. Das, H. Jeon, N. Trinajsti´ c, Comparison between the Wiener index and the Zagreb indices and the eccentric connectivity index for trees, Discrete Applied Math. 171 (2014) 35–41.

104. N. Akgüne¸ s, K. C. Das, A. S. C¸evik, Some properties on the tensor product of graphs obtained by monogenic semigroups, Applied Math. Comput. 235 (2014) 352–357.

103. K. C. Das, S. Sorgun, On Randi´ c Energy of Graphs, MATCH Commun. Math. Comput. Chem. 72 (1) (2014) 227–238.

102. M. An, L. Xiong, K. C. Das, Two upper bounds for the degree distances of four sums of graphs, Filomat 28 (3) (2014) 579–590.

101. K. Xu, K. C. Das, S. Balachandran, Maximizing the Zagreb Indices of (n, m)-Graphs, MATCH Commun. Math. Comput. Chem. 72 (3) (2014) 641–654.

100. K. Xu, K. C. Das, H. Liu, J. Wang, Some Notes on Comparing the First and Second Zagreb Eccentricity Indices of Graphs, pp. 251-262, Topics in Chemical Graph Theory. (Book Chapter)

99. N. Akgunes, A. S. Cevik, K. C. Das, Topological Indices on a Graph of Monogenic Semigroups, pp. 3-20, Topics in Chemical Graph Theory. (Book Chapter)

98. K. Xu, M. Liu, K. C. Das, I. Gutman, B. Furtula, A survey on extremal graphs with respect to distance-based topological indices, MATCH Commun. Math. Comput. Chem. 71 (3) (2014) 461–508.

97. K. C. Das, K. Xu, M. Liu, On sum of powers of the Laplacian eigenvalues of graphs, Linear Algebra Appl. 439 (2013) 3561–3575.

96. H. Hua, K. C. Das, The relationship between eccentric connectivity index and Zagreb indices, Discrete Applied math. 161 (2013) 2480–2491.

95. K. C. Das, I. Gutman, Bound for Vertex PI Index in Terms of Simple Graph Parameters, Filomat 27 (8) (2013) 1583–1587.

94. I. Gutman, K. C. Das, Estimating the total p-electron energy, J. Serb. Chem. Soc. 78 (12) (2013) 1925–1933.

93. K. C. Das, A. Sinan C¸evik, I. N. Cangul, The number of spanning trees of a graph, Journal of Inequalities and Applications 2013, 2013:395.

92. A. D. Maden, A. S. Cevik, I. N. Cangul, K. C. Das, On the Kirchhoff matrix, a new Kirchhoff index, and the Kirchhoff energy, Journal of Inequalities and Applications 2013(2013: 337).

91. K. C. Das, K. Xu, I. N. Cangul, A. S. Cevik, A. Graovac, The Harary index of graph operations, Journal of Inequalities and Applications, 2013, 2013: 339.

90. M. Liu, F. Li, K. C. Das, Ordering the Zagreb Coindices of Connected Graphs, MATCH Commun. Math. Comput. Chem. 70 (3) (2013) 939–948.

89. K. C. Das, S. A. Mojallal, Upper Bounds for the Energy of Graphs, MATCH Commun. Math. Comput. Chem. 70 (2) (2013) 657–662.

88. K. C. Das, S. A. Mojallal, I. Gutman, Improving McClelland’s Lower Bound for Energy, MATCH Commun. Math. Comput. Chem. 70 (2) (2013) 663–668.

87. K. C. Das, I. Gutman, A. Sinan Cevik, B. Zhou, On Laplacian Energy, MATCH Commun. Math. Comput. Chem. 70 (2) (2013) 689–696.

86. N. Akgünes, K. C. Das, I. N. Cangul, A. S. Cevik, The lexicographic product of graphs based on special semigroups, Journal of Inequalities and Applications, 2013, 2013: 238.

85. K. C. Das, On Kirchhoff Index of graphs, Zeitschrift fur Naturforschung A 68 (a) (2013) 531–538.

84. K. Xu, K. C. Das, H. Hua, M. V. Diudea, Maximal Harary index of unicyclic graphs with given matching number, Studia Universitatis Babes-Bolyai, Seria Chemia 2 (2013) 71–86.

83. E. G. Karpuz, K. C. Das, I. N. Cangul, Ahmet S. Cevik, A new graph based on the semi-direct product of some monoids, Journal of Inequalities and Applications, 2013, 2013: 118.

82. K. Xu, K. C. Das, Extremal Laplacian-energy-like invariant of graphs with given matching number, The Electronic Journal of Linear Algebra 26 (1) (2013) 131–140.

81. K. C. Das, A. Yurtta¸ s, M. Togan, I. N. Cangül, A. S. C¸evik, The multiplicative Zagreb indices of graph operations, Journal of Inequalities and Applications, 2013, 2013: 90.

80. A. S. C¸evik, K. C. Das, Y. Simsek, I. N. Cangul, Some array polynomials over special monoid presentations, Fixed Point Theory and Applications, 2013, 2013: 44.

79. K. C. Das, I. N. Cangul, A. D. Maden, A. S. C¸evik, On the spectral radius of bipartite graphs which are nearly complete, Journal of Inequalities and Applications 2013, 2013: 121.

78. K. C. Das, N. Akgüne¸ s, A. S. C¸evik, On a graph of monogenic semigroups, Journal of Inequalities and Applications 2013, 2013: 44.

77. K. C. Das, J.-M. Guo, Laplacian eigenvalues of the kth power of a graph, Discrete Math. 313 (2013) 626–634.

76. F. M. Bhatti, K. C. Das, S. A. Ahmed, On the Energy and Spectral Properties of the He-matrix of the Hexagonal Systems, Czechoslovak Mathematical Journal 63 (138) (2013) 47–63.

75. K. Xu, K. C. Das, Extremal unicyclic and bicyclic graphs with respect to Harary index, Bulletin of the Malaysian Mathematical Sciences Society 36 (2) (2013) 373–383.

74. K. C. Das, Proof of conjectures involving algebraic connectivity of graphs, Linear Algebra Appl. 438 (2013) 3291–3302.

73. K. C. Das, Proof of conjectures on adjacency eigenvalues of graphs, Discrete Math. 313 (2013) 19–25.

72. A. Dilek (Güngör) Maden, K. C. Das, A. Sinan C¸evik, Some bounds for the spectral radius of the Signless Laplacian matrix of a graph, Applied Math. Computation 219 (2013) 5025–5032.

71. K. C. Das, K. Xu, I. Gutman, On Zagreb and Harary indices, MATCH Commun. Math. Comput. Chem. 70 (1) (2013) 301–314.

70. K. C. Das, K. Xu, A. Graovac, Maximal unicyclic graphs with respect to new Atom-bond connectivity index, Acta Chem. Slov. 60 (2013) 34–42.

69. K. C. Das, D.-W. Lee, A. Graovac, Some properties of the Zagreb eccentricity indices, ARS Mathematica Contemporanea 6 (2013) 117–125.

68. K. Xu, K. C. Das, K. Tang, On the Multiplicative Zagreb Coindex of Graphs, Opuscula Mathematica 33 (1) (2013) 191–204.

67. K. C. Das, K. Xu, I. Gutman, Comparison between Kirchhoff index and Laplacian-energy-like invariant of graphs, Linear Algebra Appl. 436 (2012) 3661–3671.

66. K. Xu, K. Tang, K. C. Das, H. Yue, Chromatic number and some multiplicative vertex-degree-based indices of graphs, Kragujevac Journal of Math. 36 (2) (2012) 323–333.

65. K. C. Das, N. Trinajsti´ c, Comparison between geometric-arithmetic indices, Croat. Chem. Acta 85 (3) (2012) 353–357.

64. K. C. Das, The Journal of Applied & Computational Mathematics, Applied & Computational Mathematics (JACM), 1 (2) (2012). (EDITORIAL)

63. B. S. Shetty, V. Lokesha, P. S. Ranjini, K. C. Das, Computing some Topological indices of smart polymer, Digest Journal of Nanomaterials and Biostructures 7 (3) (2012) 1097–1102.

62. B. Arsi´ c, I. Gutman, K. C. Das, K. Xu, Relation between Kirchhoff index and Laplacian-energy-like invariant, Bull. Acad. Serbe Sci. Arts (Cl. Sci. Math. Natur.) 144 (2012) 61–72.

61. R. K. Marwaha, H. Jangra, K. C. Das, P. V. Bharatam, A. K. Madan, Fourth generation detour matrix based topological indices for QSAR/QSPR Part-1: development and evaluation, IJCBDD 5 (3/4) (2012) 335–360.

60. K. C. Das, Proofs of conjectures involving the largest and the smallest signless Laplacian eigenvalues of graphs, Discrete Math. 312 (2012) 992–998.

59. K. Xu, K. C. Das, Trees, unicyclic and bicyclic graphs extremal with respect to multiplicative sum Zagreb Index, MATCH Commun. Math. Comput. Chem. 68 (1) (2012) 257-272.

58. B. Horoldagva, K. C. Das, On comparing Zagreb indices of graphs, Hacettepe Journal of Mathematics and Statistics 41 (2) (2012) 223–230.

57. K. C. Das, I. Gutman, B. Furtula, On Atom bond Connectivity Index, Filomat 26 (4) (2012) 733–738.

56. K. C. Das, I. Gutman, B. Horoldagva, Comparison between Zagreb indices and Zagreb coindices, MATCH Commun. Math. Comput. Chem. 68 (1) (2012) 189-198.

55. K. C. Das, A. Dilek Gungar, A. Sinan C¸evik, On the Kirchhoff index and the resistance distance energy of a graph, MATCH Commun. Math. Comput. Chem. 67 (2) (2012) 541–556.

54. K. C. Das, Spectral radius and maximal entry in the principal eigenvector for the distance matrix of a graph, Discrete Math. 311 (2011) 2593–2600.

53. K. C. Das, I. Gutman, B. Furtula, On first geometric-arithmetic index of graphs, Discrete Applied Math. 159 (2011) 2030–2037.

52. K. C. Das, I. Gutman, D. Vukicevic, One-two descriptor of graphs, Bull. Acad. Serbe Sci. Arts (Cl. Sci. Math. Natur.) 143 (2011) 37-47.

51. K. C. Das, I. Gutman, B. Furtula, On atom-bond connectivity index, Chem. Phys. Lett. 511 (2011) 452–454.

50. K. C. Das, Proofs of conjecture involving the second largest signless Laplacian eigenvalue and the index of graphs, Linear Algebra Appl. 435 (2011) 2420–2424.

49. K. C. Das, N. Trinajsti´ c, Relationship between the eccentric connectivity index and Zagreb indices, Computers and Mathematics with Appl. 62 (2011) 1758–1764.

48. K. Xu, K. C. Das, On Harary index of graphs, Discrete Applied Math. 159 (2011) 1631–1640.

47. K. C. Das, Extremal graph characterization from the bounds of the spectral radius of weighted graphs, Applied Math. Computation, 217 (2011) 7420–7426.

46. K. C. Das, I. Gutman, B. Furtula, A survey on geometric-arithmetic indices of graphs, MATCH Commun. Math. Comput. Chem. 65 (3) (2011) 595–644.

45. K. C. Das, F. M. Bhatti, S.-G. Lee, I. Gutman, Spectral properties of the He matrix of Hexagonal systems, MATCH Commun. Math. Comput. Chem. 65 (3) (2011) 753–774.

44. K. C. Das, N. Trinajsti´ c, Comparison between first geometric-arithmetic index and atom- bond connectivity index, Chem. Phys. Lett 497 (2010) 149-151.

43. K. C. Das, Conjectures on index and algebraic connectivity of graphs, Linear Algebra Appl. 433 (2010) 1666-1673.

42. K. C. Das, On conjectures involving second largest signless Laplacian eigenvalue of graphs, Linear Algebra Appl. 432 (2010) 3018-3029.

41. K. C. Das, I. Gutman, Estimating the Wiener index by means of number of vertices, number of edges, and diameter, MATCH Commun. Math. Comput. Chem. 64 (3) (2010) 647–660.

40. K. C. Das, Atom-bond connectivity index of graphs, Discrete Applied Math. 158 (2010) 1181–1188.

39. A. Dilek Gungar, K. C. Das, Improved Upper and Lower Bounds for the Spectral Radius of Digraphs, Applied Math. Computation 216 (2010) 791-799.

38. K. C. Das, On Comparing Zagreb Indices of Graphs, MATCH Commun. Math. Com-put. Chem., 63 (2) (2010) 433-440.

37. A. Abouelaoualim, K. C. Das, W. Fernandez de la Vega, M. karpinski, Y. Manoussakis, C. A. Martinhon and R. Saad, Hamiltonian configurations in edge-colored graphs, Journal of Graph Theory 64 (1) (2010) 63–86.

36. K. C. Das, S.-G. Lee and G.-S. Cheon, On the conjecture for certain Laplacian integral spectrum of graphs, Journal of Graph Theory 63 (2010) 106-113.

35. K. C. Das, Maximum Eigenvalue of the Reciprocal Distance matrix, Journal of Mathematical Chemistry 47 (2010) 21-28.

34. K. C. Das, On geometrical-arithmetic index of graphs, MATCH Commun. Math. Comput. Chem. 64 (3) (2010) 619–630.

33. K. C. Das, I. Gutman, Estimating the vertex PI index, Zeitschrift fr Naturforschung A, 65a (2010) 1-5.

32. K. C. Das, I. Gutman, B. Furtula, On second geometric-arithmetic index of graphs, Iranian Journal of Mathematical Chemistry 1 (2) (2010) 17–28. (Special Issue: Dedicated to the Pioneering Role of Ivan Gutman In Mathematical Chemistry)

31. K. C. Das, I. Gutman, B. Furtula, On third geometric-arithmetic index of graphs, Iranian Journal of Mathematical Chemistry 1 (2) (2010) 29–36. (Special Issue: Dedicated to the Pioneering Role of Ivan Gutman In Mathematical Chemistry)

30. K. C. Das, A sharp upper bound on the maximal entry in the principal eigenvector of symmetric nonnegative matrix, Linear Algebra Appl. 431 (2009) 1340-1350.

29. K. C. Das and Sang-Gu Lee, On the conjecture of the Estrada index, Linear Algebra Appl. 431 (2009) 1351-1359.

28. K. C. Das, I. Gutman, B. Zhou, New upper bounds on Zagreb indices, Journal of Mathematical Chemistry, 46 (2) (2009) 514-521.

27. K. C. Das, On the largest eigenvalue of the distance matrix of a bipartite graph, MATCH Commun. Math. Comput. Chem., 62 (3)(2009) 667-672.

26. K. C. Das, B. Zhou, N. Trinajsti´ c, Bounds on Harary index, Journal of Mathematical Chemistry, 46 (4) (2009) 1377-1393.

25. B. Horoldagva, K. C. Das, Comparing Variable Zagreb Indices for Unicyclic Graphs, MATCH Commun. Math. Comput. Chem., 62 (3)(2009) 725-730.

24. K. C. Das, I. Gutman, Estimating the Szeged index, Applied Math. Lett. 22 (2009) 1680-1684.

23. H. Dureja, K. C. Das and A. K. Madan, Superpendentic Connectivity Indices: Pendenticity-cum-Adjacency based Topological Descriptors for QSAR/QSPR, Sci. Pharm. 77 (2009) 521-537.

22. A. Abouelaoualim, K. C. Das, W. Fernandez de la Vega, M. karpinski, Y. Manoussakis, C. A. Martinhon and R. Saad, Paths and Trails in edge-colored graphs, Theoretical Computer Science 409 (2008) 497-510.

21. K. C. Das and R. B. Bapat, A sharp upper bound on the spectral radius of weighted graphs, Discrete Math., 308 (2008) 3180-3186.

20. K. C. Das, Extremal graph characterization from the upper bound of the Laplacian spectral radius of weighted graphs, Linear Algebra Appl., 427 (2007) 55-69.

19. K. C. Das, A sharp upper bound for the number of spanning trees of a graph, Graphs and Combinatorics, 23 (6) (2007) 625-632.

18. K. C. Das and Jin Ho Kwak, Characterization of graphs on the Randi´ c Index, Linear Algebra Appl., 420 (2007) 124-134.

17. K. C. Das, Some spectral properties of the Laplacian matrix of starlike trees, Italian Journal of Pure and Applied Math., 21 (2007) 197-210.

16. Balbuena, E. Barker, K. C. Das, Y. Lin, M. Miller, J. Ryan, Slamin, K. Sugeng, M. Tkac, On the degrees of a super-vertex-magic graph, Discrete Math. 306 (2006) 539-551.

15. K. C. Das and R. B. Bapat, A sharp upper bound on the largest Laplacian eigenvalue of weighted graphs, Linear Algebra Appl. 409 (2005) 153-165.

14. K. C. Das, Some properties of Laplacian eigenvalues for generalized star graph, Kragujevac Journal of Math. 27 (2005) 145-162.

13. K. C. Das, Sharp upper bounds on the spectral radius of the Laplacian matrix of graphs, Acta Mathematica Universitatis Comenianae, 2 (2005) 185-198.

12. K. C. Das, A characterization on graphs which achieve the upper bound for the largest Laplacian eigenvalue of graphs, Linear Algebra Appl. 376 (2004) 173-186.

11. K. C. Das, Sharp Lower Bounds on the Laplacian eigenvalues of Trees, Linear Algebra Appl. 384 (2004) 155-169.

10. K. C. Das and P. Kumar, Some new bounds on the spectral radius of graphs, Discrete Math. 281 (2004) 149-161.

9. K. C. Das, Maximizing the sum of the squares of the degrees of a graph, Discrete Math., 285 (2004) 57-66.

8. K. C. Das, The Laplacian Spectrum of a Graph, Computers and Mathematics with Appl., 48 (2004) 715-724.

7. K. C. Das, The largest two Laplacian eigenvalues of a graph, Linear and Multilinear Algebra 52 (6) (2004) 441-460.

6. I. Gutman and K. C. Das, The first Zagreb Index 30 years after, Communications in Mathematical and in Computer Chem. (MATCH) 50 (2004) 83-92.

5. K. C. Das and I. Gutman, Some properties of the Second Zagreb Index, Communications in Mathematical and in Computer Chem. (MATCH) 52 (2004) 103-112.

4. K. C. Das, An improved upper bound for Laplacian graph eigenvalues, Linear Algebra Appl. 368 (2003) 269-278.

3. K. C. Das, Sharp bounds for the sum of the squares of the degrees of a graph, Kragujevac Journal of Math. 25 (2003) 31-49.

2. K. C. Das and P. Kumar, Bounds on the greatest eigenvalue of graphs, Indian Journal of Pure and Applied Math. 34 (6) (2003) 917-925.

1. K. C. Das, From the Editor-in-Chief, Linear Algebra and its Appl. 360 (2003) 279-283 (see page 283, no. (9) ).

Conference Publications:

1. A. Abouelaoualim, K. C. Das, W. Fernandez de la Vega, M. karpinski, Y. Manoussakis, C. A. Martinhon and R. Saad, Paths and Trails in edge-colored graphs, Lecture Notes in Comput. Sci., 4957, Springer, Berlin, 2008. (SCIE)